Internal combustion engine



111.111,- 1932. A. MOOHoUSE 1,841,416

INTERNAL COMBUSTION ENGINE Filed Marqh 50, 1929 40 .fi/:Fam: NaaHHazLs-E.

drammi F1515; It has heretofore been proposed to" provide 4 .a motor vehicle'radiator with shutters forv Patented Jan. 19, 1932v j COMPANY, or DETROIT, MIoHreAN,aonromrrioivjor moment;

INT-'animi @MBSTNENGINE- l Appneaiionmea Marcato, 1929. semaine; '$51,231. l

.This invention relates to internal combus tion engines and more particularly to means for controlling shutters for vthe radiators thereof.

controlling: the passage of `air therethrough anda thermostat operatively f connected to theshutters and associated With'the'radiator,

1o so that it will be subjected toV the-.cooling medium flowing :through the cooling system. f It Ahas also been proposed to providemeans whereby the-thermostat maybe easily removed for purposes of replacement,` repairor 115 the adjustment required due to atmospheriejf vid-e a means which may be easily and-quiekv j generallyfa vradiatorforanfinternaleombus`l tion 'eiigine'` lTheradiator is of the eonvenA y'tional vvtype having"a'corel11,alnd an` upper tank lvpositioned in afshel'l 13. As showin' vfthe shell vis I. provided withv an vornamental front 1,4v of any vpreferred design and inountfy ed 'on 'the vvfronte-fthe radiatoris a shutter'V 15 "'Whichxmay be vof anysuitable structure i temperature variations- I Generally, in; prlorr structures since it lhas been found-necessary 'to dismantle the thermostat to effect adjustment there@ Y overcome these objections.'

AAn object of the invention of. "It is the aim of the'present invention'to shut-ter.- I j v A A Another object oftheinvention risto proy ily manipulated "to control the action` of Shut? thermostat operatively Connected to the ter of a motor vehicle radiator. Another Object of `the invention is to vide a control'meansfor a thermostatieally operated shutter for a motor'vehiclev radiator in which Ithe control element is readilyfac- -cessib,1e."' 'L 1"' A; further-object ofthe invention is to provide'a thermostatticallyV 'operated shutter for mostat is positionedwithinthe radiator and vitinay be adjustedto oppose the movement "of i "the thermostat according to th'evariations in' atmospheric temperature. f Still a further ob `ect of the having a theremostat associatedivvith the ra'- diator and operatively connected totheshut-Y` fV ofths typek y ready adjustment of@V thethermastat 'hasj proved a problem'of considerablemagnitiider` l f r j 1 FrigJBfsa fragmentaryviewpartlyin sec` is" tof provide a controlA for a thermostatically operated i f "'nectionbetweenlthecoil springs.

.40- a rmotor vehiole'radiator infWhichv the ther- WallV yof the cup yis a bracket'Ql and pivotally secured theretof is al-bell crank-lever 22,` one arm of which is v Y connectedto the rod 20'asindic'ated at 23 and 'the otherM arm ifsy connected toa rod 24v adjustabfly' secured'to a lstud 25y on Ithe slide 17.'.y 'A F rom'the foregoing itwill vbe observed that j n invention is to y providea control fora thermostatically operate'd Yshutter vfor a'motor vehicle radiator ter and' a' control'for the thermostat arrangedk sothat` but feWparts are required 'for the ALFRED MooRHoUsE, or'nnrnoirfniiejnmanj Assreivonro roKAnn Moron GA3 production of'adevioesin which the action Willbe positive, highly eflieient in operation and ofrmarledsilnp-liloity asia Whole and inv respect to each fof its component parts, soithat c `its manufacture may be economically*faeili-V y ated both as regardsl parts and theirassem-v 'Y Other objects of the inventionf'will appear from theffollowingdescription takenvinj'connectionl with the-drawings5 rwhich form a part'ofthis specification,and'in'which'za M S llis ajfrontelevation ofy aradiator and ajfshell therefor lpartly? broken away ,1 illusfV ,-ftrating the inventionas applied; j

si Figi-2' islia sectional-view taken 'Online v2lQ'OffFigf Lillustrating the Qontrol in one position; y

nry

tion*illustratingpthe contr'oljinl another 'pof. Y

1 sitionf;

FigJAis ai fragmentary,view` illustrating v the ladj'ustment means lfor the control, `and Fig, i5` is a detail `View ilustrating thejcvonhaving louners` 16 'operatively connectedy 'to l tarilrlathermostat 19,l the movablemeniber A ofvvhich l(not shown) is connectedto a rod.,`

20 suitably mounted forgreciproea'tion in* the 18. `Positioned in the"` cup 15 when the shutter is in a closed position.

Bolted or otherwise secured to the front of the tank is a bracket 27 andpivotally mounted in the bracket and the panel 26 is a crank shaft 28 having on one end thereof a. thumb nut 29.positioned in front'l of the panel 2G substantially centrally between the ends thereof.

Positioned on the'slide 17V is a stud 30 to :which is suitably attached a coil spring 31.

As shown', one end of this spring is attached to thestud'30 and the other end thereof is provided with an eye 32. A coil spring 33 of less tensile strength than the spring 31 is connected tothe spring 31. As shown, the spring 33 has an eye 34 adapted to register with the eye 32 on the springv 31 and the eye oth-er end of the spring V33 terminates in a Vrod 35 having a hook36 on its free end adapted to enga-ge the crank onthe shaft 28.-'- `A rod 37 passes through the spring 33VV and the registering eyes 32 and 311. This rod is providedon one end with afknob or'button 38 and on the other end with a hook39 engaging the crank on the shaft 28.` The rod 3 7 retains the'eyes 32 and 34 inengagement and is adapted to reciprocate freely`r therein. In the position shown in Figs. 1 and'2 the rod 37 is taut with the button 38 thereon in engagement with theeye-34- When in this position any movement of' the thermostatic eleymenttei'idingtoopen the shutter 15 is opposed by the coil spring 31. Ryesistancevto the opening movementof the shutter is through the rod 37 and the coil spring 31 to the'slide'17. The tensile strength of the spring 31 is greater than the` tensile strength-of the spring 33 hencethe greater resistance tothe opening 1 movement of the shutter 1s imposed when adjusted as above described, such adjustment being suitable for cold or winter weather.

In the position shown in Fig. 3 the thumb nut29vhas-been turned to move the shaft 28 through a radius of 180o to engage a stop 10 on thebra-cket 27. In assuming this positionl tension is removed from the rod 37 and the tween the convolutions of the coil spring 31.

` lVhen so adjusted any movement of the therniostatic element tending to open theshutter A15 isresisted by the coil spring 33Ywhich has less tensile strength than the( spring 31, Ac-

cordingly, movement of the thermostatic ellement will be quicker. Hence, this adjustment is suitable for warm or summer weather.

When it is desired to'adjust the device for operation in cold weather the thumb nut 29 is turned to move the crank shaft 28 through an arc of 180o to engage a stop 41. When in this position the crank to which the rods 35 and 37 are attached is olf center and hence the load placed thereon by the coil spring 31 through therod 37 will tend to securely retain the shaft in position.v By turning the thumb nut through an arc of 180o in either direction-.the device can be easily and quickly adjustedto control the operation of the thermostat to meet the requirements according to atmospheric temperature variations.

Although this inventionhas been described in connection with certain specific embodiments, the principles involved are susceptible 85 -of numerous other applications which will readily occur to persons skilled in the art. Theinvention is, therefore, to be limited only as, indicated. by the scope of the appended claims. l i,

Having thus described the various features of my invention, what I claim as new and de- Y sire to secure by Letters Patent is: ,34 is positioned backof the eye 32, and the 1. In combinationwith a radiator,`a shutterrtherefor and a thermostat operati-Vel)r 1.95

connected to the shutter, a plurality of spring ;members connected to the shutter,each'hav ing different tensile strength and a single -means for alternately varying the operative 10o relation of the members to the shutter. j 2. In combination with a radiator, a shutter therefor and athermostat operatively connected to the shutter', resilient tension members of different tensile strength connected'to the shutter to resistthe opening :lo

movement and to amplify the'closing movement of the' shutter Aand a single means for placing one member 1n operative relation to vthe shutter simultaneously upon-placing another member out of operative'relation there-111.110

ro.V o j In acooling system for an internal combustion engine having a radiator, a shutter for the radiator and a thermostat operatively connected to the shutter, a control means, H5

spring members connected in series between the shutterand the control means and means operated by the control .for varying the tension on one member andsimultaneously varying the operativeV relation ofthe other-mem?- 5120 ber to the shutter.

4. In a coolingV system for an internal combustion engine having a radiator, a shutter for the radiator and a thermostat operatively connected to the shutter, a control, resilient members of different tensile strength connectedin series-between the shutter and the `control and means operable rby the control to alternately vary the operative relation 0fV 3o members to the shutter.

5. In a cooling system for an internal combustion engine having a radiator, a shutter for the radiator anda thermostat operatively` 1 connected to the shutter, a control member, i resilient tension members connected in series between the shutter and the control member, means operable by the control member for varying the tension, and means for retaining the control member in'a Aplurality of positions.

6. In a cooling system foran internal combustion engine having a radiator, a shutter for the radiator anda thermostat operatively v connected to the shutter, a control member, means for retaining the control member in a plurality of positions, a plurality of coil springs connected in series between the, shutter and the control member and a rod operated by the control member to vary the tension on the springs.

7. In a cooling system fortan internal combustionengine having a radiator, 'a shutter for the radiator and a thermostat operatively connected to the shutter, a control device,

springs of di fferenttensile strengths connect-4 ed together in series between the control deviceand the shutterv to close said shutter, and

means to positively limit theweaker spring Y to a predetermined extension'. p

8. In a cooling system for an internal combustioii engine having a radiator, a shutter `for the radiator, and a thermostat operatively connected to the shutter, a shutter closing' device including springs of diii'ereiitV tensile strength connected together and contractable to close the shutters, and a control device adapted to selectively limit thespringextension toeither spring.Y l

9. In a cooling system for an internal combustion engine having a radiator, a shutter therefor, and tliermostatic means to 'operate said shutter, la devicev to oppose opening action of the thermostatic means on the shutter including springs of different Y tensile, strengths connected end tolend, and ineXtenible means to transfer the springf1pullf through the weaker to the stronger spring upon a predetermined Vextension of the Weaker spring. Y

In testimony whereof I aiiiX my signature.

,ALFRED Mooii'npousn. 

